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[TCP] tcp-lp: prevent chance for oops

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This patch fix the chance for tcp_lp_remote_hz_estimator return 0, if
0 < rhz < 64. It also make sure the flag LP_VALID_RHZ is set
correctly.

Signed-off-by: Wong Hoi Sing Edison <hswong3i@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wong Hoi Sing Edison 2006-09-28 14:40:21 -07:00 committed by David S. Miller
parent 1811474620
commit bfbea8a886
1 changed files with 1 additions and 3 deletions
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4
net/ipv4/tcp_lp.c
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@ -31,8 +31,6 @@
* Hung Hing Lun, Mike <hlhung3i@gmail.com>
* SourceForge project page:
* http://tcp-lp-mod.sourceforge.net/
*
* Version: $Id: tcp_lp.c,v 1.24 2006/09/05 20:22:53 hswong3i Exp $
*/
#include <linux/module.h>
@ -164,7 +162,7 @@ static u32 tcp_lp_remote_hz_estimator(struct sock *sk)
out:
/* record time for successful remote HZ calc */
if (rhz > 0)
if ((rhz >> 6) > 0)
lp->flag |= LP_VALID_RHZ;
else
lp->flag &= ~LP_VALID_RHZ;